A sureno gang from Wapato Washington. Bst stands for Barrio Sureno Trece. They are the biggest gang in the city. With over 80 members. Some hispanic and some white. There allies are a norteno gang called Olb which stands for Original Loko Boys. Bst are known for drug trafficking, murders, and vandalism. They also talk to other sureno gangs such as LVL and PBS.

Acronym for "Big Saucy Tits". Refers to extremely nice breasts. Stems from the spelling of breast, containing B, S, and T in that order. Because BST stands for "binary search tree" in computer science, the word "balanced" usually proceeds BST.

Wow, Lindsey's hottest feature is her rack of juicy balanced BSTs.

The second I looked up and saw some massive BSTs, I immediately knew I was staring at Bird's mom's beautiful bosom.